package com.suixun.dao.redis.base;

import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.ObjectInputStream;
import java.io.ObjectOutputStream;

import org.springframework.beans.factory.annotation.Autowired;  
import org.springframework.data.redis.core.RedisTemplate;  
import org.springframework.data.redis.serializer.RedisSerializer;
    
public abstract class AbstractBaseRedisDao<K, V> { 
    
    @Autowired  
    protected RedisTemplate<K, V> redisTemplate;  
  
    /** 
     * 设置redisTemplate 
     * @param redisTemplate the redisTemplate to set 
     */  
    public void setRedisTemplate(RedisTemplate<K, V> redisTemplate) {  
        this.redisTemplate = redisTemplate;  
    }  
      
    /** 
     * 获取 RedisSerializer 
     * <br>------------------------------<br> 
     */  
    protected RedisSerializer<String> getRedisSerializer() {  
        return redisTemplate.getStringSerializer();  
    }  
    
    /**
     * 描述 : <Object转byte[]>. <br>
     * <p>
     * <使用方法说明>
     * </p>
     * 
     * @param obj
     * @return
     */
    public byte[] toByteArray(Object obj) {
        byte[] bytes = null;
        ByteArrayOutputStream bos = new ByteArrayOutputStream();
        try {
            ObjectOutputStream oos = new ObjectOutputStream(bos);
            oos.writeObject(obj);
            oos.flush();
            bytes = bos.toByteArray();
            oos.close();
            bos.close();
        } catch (IOException ex) {
            ex.printStackTrace();
        }
        return bytes;
    }

    /**
     * 描述 : <byte[]转Object>. <br>
     * <p>
     * <使用方法说明>
     * </p>
     * 
     * @param bytes
     * @return
     */
    public Object toObject(byte[] bytes) {
        Object obj = null;
        try {
            ByteArrayInputStream bis = new ByteArrayInputStream(bytes);
            ObjectInputStream ois = new ObjectInputStream(bis);
            obj = ois.readObject();
            ois.close();
            bis.close();
        } catch (IOException ex) {
            ex.printStackTrace();
        } catch (ClassNotFoundException ex) {
            ex.printStackTrace();
        }
        return obj;
    }
}